Follistatin 344 1mg

Note: Interactive HPLC chromatogram and ESI-MS spectrum render with JavaScript. The verified analytical data is summarised below. Certificate of Analysis — Follistatin 344 1mg 344-AA isoform · Glycoprotein · Activin/myostatin antagonist Verified by Apex Laboratory in-house HPLC (purity by 220 nm peak area) and ESI mass spectrometry (mass identity confirmation). Data on this page describes the current shipping lot. Purity (HPLC, area %): 99.82% Mass expected: 38400 Da HPLC retention time: 13.0 min Batch ID: APX-2026-0410-F Test date: April 10, 2026 Analyst: K. Norwood View Follistatin 344 1mg on the Lab Verified COA archive Follistatin 344 1mg is a activin/myostatin-binding protein supplied by Apex Laboratory as a high-purity research peptide intended strictly for in-vitro laboratory research and development applications. Compound Overview Follistatin 344 is a naturally occurring glycoprotein that binds and neutralizes activin, myostatin, and other TGF-β superfamily members. By sequestering these ligands, follistatin removes inhibitory signals on muscle satellite cells and follicular development. It is a key regulator of the myostatin pathway. Research Background & Published Literature Published extensively in Molecular Endocrinology, Developmental Biology, and PNAS. Research spans muscle biology (myostatin inhibition), reproductive endocrinology (FSH regulation), and TGF-β signaling. Researchers interested in the published literature surrounding this compound can explore the following peer-reviewed resources for additional context on its mechanism of action, signaling pathways, and experimental applications in controlled laboratory settings: Lee (2007) — Follistatin and myostatin signaling review Technical Specifications Product Name: Follistatin 344 1mg Classification: Activin/Myostatin-Binding Protein Structural Description: 344-amino acid glycoprotein, activin-binding protein Molecular Weight: ~36,000 g/mol (glycoprotein) Purity: ≥99% (verified by HPLC and Mass Spectrometry) Physical Form: Lyophilized (freeze-dried) powder Intended Use: In-vitro research use only — not for human consumption Storage, Handling & Stability Guidelines Store lyophilized material at -20°C for long-term stability. After reconstitution with sterile diluent, refrigerate at 2–8°C and minimize freeze-thaw cycles by aliquoting working volumes according to your standard operating procedures. Minimize time at ambient temperature during handling to preserve compound integrity. Avoid moisture exposure by resealing vials promptly after each withdrawal. Use appropriate personal protective equipment and follow your institution’s chemical safety protocols at all times. Label all aliquots with the compound name, concentration, date of reconstitution, and operator initials for complete traceability. Quality Assurance & Analytical Verification Apex Laboratory applies a dual-verification quality protocol to every batch before it enters inventory. Each lot undergoes High-Performance Liquid Chromatography (HPLC) to confirm chromatographic purity and Mass Spectrometry (MS) to verify molecular identity and molecular weight. This two-step analytical process ensures that the material you receive meets our ≥99% purity standard with confirmed molecular integrity. Certificates of Analysis documenting these Follistatin 344 test results are available upon request for your internal quality records. Frequently Asked Questions What is the primary research application of this compound? This compound is classified as a activin/myostatin-binding protein and is used in laboratory settings to study related signaling pathways and biological mechanisms in controlled in-vitro experiments. What storage conditions are recommended? For long-term storage, keep the lyophilized material at -20°C in a sealed container away from moisture and light. After reconstitution, refrigerate at 2–8°C and use within the recommended timeframe for your workflow. Is this product approved for human use? No. All compounds sold by Apex Laboratory are classified as chemical research reagents intended strictly for in-vitro laboratory research. They are not approved for human consumption, veterinary use, or any therapeutic application. Purchasers who imply intended bodily use will have their orders cancelled and accounts permanently suspended. What documentation is available for this compound? Certificates of Analysis (COA) with HPLC chromatograms and Mass Spectrometry data are available for current batches. View current COAs in our Lab Verified archive or request specific batch documentation through our contact page. Is bulk ordering available? Yes. For bulk quantities, custom packaging requirements, or recurring supply agreements, contact our team with the compound name, desired quantity, preferred dosage format, and your target delivery timeline. Volume pricing is available for qualifying orders. Related Research Compounds Researchers studying activin/myostatin-binding protein pathways may also be interested in related compounds available from Apex Laboratory, including ACE 031 1mg, IGF-1 LR3, TB-500. Explore our complete research catalog to browse all available peptides, reagents, and laboratory supplies, or visit our About page to learn more about our quality verification process. Shipping, Packaging & Delivery All orders placed before 2:00 PM Eastern Standard Time ship the same business day via tracked domestic carriers. Follistatin 344 orders are packaged in insulated, temperature-appropriate containers designed to preserve compound stability during transit. Upon delivery, transfer all materials to appropriate storage conditions immediately. For time-sensitive research protocols or special delivery requirements, contact our support team in advance to coordinate optimal shipping timing for your laboratory workflow. Research Use Disclaimer For in-vitro research use only. Not for human consumption. All products including Follistatin 344 sold by Apex Laboratory are intended exclusively for qualified researchers, accredited laboratories, and educational institutions. Purchasers assume full responsibility for ensuring safe handling, proper storage, and compliance with all applicable federal, state, and local laws, regulations, and institutional policies governing the purchase and use of chemical research reagents.